Dental crowns are complete restorations that protect a broken down or compromised tooth. A crown is like a cap that goes around (and bonded to) the tooth entirely. A crown will distribute pressure evenly across the full surface of the tooth, strengthening the motions during eating.
A dental crown provides a very strong outer layer to protect the more sensitive inner portion of the tooth. This protective covering acts like an extra layer of strength so the tooth can continue functioning properly, extending the life of the tooth for as long as possible.